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HIV Infections
Acquired Immunodeficiency Syndrome
HIV-1
Italy
Anti-HIV Agents
HIV Protease Inhibitors
RNA, Viral
Reverse Transcriptase Inhibitors
Viral Drug Resistance
Genotype
Phenotype
HIV Seropositivity
HIV Seronegativity
Highly Active Antiretroviral Therapy
CD4 Lymphocyte Count
Polymerase Chain Reaction
Risk Factors
Cohort Studies
Viral Load
CD4-Positive T-Lymphocytes
Co-Publications
24
17
16
12
11
9
8
7
6
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